Sanding machine



R. ISEN HOUR SANDING MACHINE May 31, 1932.

Filed Aug. 5, 1930 INVENTOR l i ll faas .Eenh

ATTORNEY WlTNES V f I Patented May 31, 1932 UNITED STATES PATENT OFFICESANDING MACHINE Application filed August 5, 1930. Serial No. 473,195.

My invention relates to brick making machines and particularly to amachine for applying sand to the face of a clay column of which thebrick is formed.

It is a primary object of the present invention to provide an apparatuswhich will apply sand to the underside of the column of clay extrudedfrom a side cutting brick machine in the manufacture of bricks.

A further object of the invention is to provide an apparatus of the kinddescribed which may perform its function immediately before the columnof clay enters the brick cutting machine as well as after it is extrudedtherefrom.

A further object of the invention is to provide a machine which isextremely simple in construction and easily installed to operate incon'unction with existing machinery.

urther important objects will become apparent during the course of thefull description taken in conjunction with the accompanying drawings, inwhich like numerals refer to like parts throughout the same and in whichFigure 1 is a side elevation of the invention;

Figure 2 is an end elevation thereof looking in the direction of thetravel of the clay column;

Figure 3 is a top plan view; 7

Figure 4 is a detail vertical section on the line 44 of Figure 3;

Figure 5 is a vertical section on the line 55 of Figure 3;

One of the objects of the present invention is to apply sand to theunder-face of the column of clay either before it enters or after it isextruded from a side cutting brick machine for the purpose ofmanufacturing colonial texture brick.

In the preferred embodiment of the invention, as illustrated on theenclosed drawings, the column of claybrick is shown just after it isextruded from a side cutting brick machine and as it is passing over asteel splicer plate 10. In passing over this plate which is highlypolished the underside of the column of brick becomes dry and glazed.Accordingly in order that the sand which is subsequently applied to thisunderside will adhere thereto it is advisable to dampen or wet the sameand in order to accomplish this an elongated vent 11 is provided throughthe steel splicer plate. This vent may be formed by slitting the platetransversely of the line of travel of the column of clay and thenbending the forward edge of the slit downwardly to form a rearwardlydirected lip 12 so that as the column of clay advances there will be nosharp edges to interfere with its travel. By forming the vent in thisway there is also provided a neat recess for the reception of aperforated pipe 13 to which is attached a hose or other flexible watersupplying means 14, as clearly shown in Figure 5. The perforations inthe pipe 13 are forwardly and upwardly directed so as to throw a supplyof water over the entire underface of the column of clay as it passesover the vent 11, thereby thoroughly dampening the same in readiness torece ve the sand facing.

The column of clay passes from the splicer plate 10 onto the steeldelivery plate 15 which plate is provided near its forward end with avent 16 formed similarly to the vent 11 and also provided with arearwardly directed lip 17 against which a sand delivery nozzle 18 isadapted to rest. The sandunder pressure is delivered to the nozzle 18through the medium of motor driven blower 19.. The nozzle 18 is formedwide and flat so as to direct the sand against the entire undersurfaceof the column of clay as it'passes over the vent '16.

Sand may be delivered to the blower 19 in any convenient manner, but I,prefer to use the excess sand which has been previously applied tothetop of the column of clay. In order to collect this sand I provide asuitable scraping bar 20 which is shown as having for its contact edge apiece of stiff canvas belting 21 which is held in contact with the uppersurface of the column of clay. This scraping bar is supported by meansof uprights 22 and 23 secured to the delivery plate 15 on either side ofthe path of travel of the column of clay prior to its passage over thevent '16.

The scraping bar should be secured at an angle of about 45 degrees tothe direction of travel of the column of clay so that the sand will bedischarged to one side of the said column. Directly beneath the point atwhich the sand will be discharged an opening 24 is provided through theplate 15 through which the sand will fall. After the sand falls throughthe opening 24 it passes into spout 25 from which it is delivered to theblower 19 and thence to the nozzle 18. The sand could be supplied to theblower from a hopper or any other source without-materially altering thestructure of the ma-, chine.

In the operation of the machine, the column of clay is extruded from aside cutting brick machine (not shown). This column of clay is made upof individual bricks in top and bottom contact thereby forming in effectan unbroken column. In the form in which the bricks issue from thecutting machine, the top and upper sides and ends have previously beenprovided with a coating ofsand to secure the proper face texture.However, the face of the underside of the bricks due to their passageover the polished surface of the machine become dry and glazed andunless they are finished in some manner this face of brick is unfit forexposure outwardly when the brick is used in building.

As the brick passes over the plate the underface thereof is dampened bymeans of contact with the spray of the pipe 18. After the bricks travelon and over the plate further onto the plate the blade scrapes theexcess sand from the top thereof delivering said sand to the blower 19through the spout 25. The sand from the blower 19 is then projected fromthe nozzle 18 onto the dampened underside of the brick thereby finishingthis side and making it lit for exposure outwardly when used inbuilding. As soon as the brick has received. the coating of sand andpasses beyond the vent 16 it is removed from the table 15. Although apreferred embodiment of the invention has been shown and described, itis to be understood that various changes in the details of constructionmay be made without departing from the spirit of the invention asexemplified in the appended claims.

I claim V 1. In a device of'the character described, a supporting platehaving vents formed therein, a column of brick adapted to pass over saidplate and said vents, and means for supplying liquid spray through oneof said vents and a sand blast through the other of said vents, totexture the underface of said column of brick.

2. In a device of the character described, a flat table like supportadapted for the passage of a column of brick thereover and having a ventformed transversely thereof and in the path of said brick, a nozzleprojected into said vent below the level of said plate, and means forsupplying a blast of sand to said nozzle.

3. In a device of the character described, a plate for supporting acolumn of brick adapted to pass thereover, a scraping element carried bysaid plate and adapted to contact the upper face of said column ofbrick, to remove excess sand therefrom, a blower, means for deliveringthe sand from said scraper to said blower, said plate having atransversely extending vent intersecting the path of said brick, adelivery nozzle leading from said blower to deliver sand under pressurethrough said vent to apply the same to the undersurface of said brickcolumn.

4. In a device of the character described, a pair of supporting platesadapted for the passage of a column of brick thereover and having ventsformed therein intersecting the path of said brick, means for supplyingmoisture through the vent in one supporting plate to moisten theundersurface of the column of brick, and means for subsequentlysupplying sand under pressure through the vent in the other supportingplate, to texture said moistened underface, said sand supplying meansincluding a blower having a discharge nozzle located in saidlast-mentioned vent below the level of said plate.

5. In a device of the character described, a support adapted for thereception of a moving column of brick, said support having a pair ofspaced vents extending transversely of the path of travel of said brickcolumn, means for projecting a liquid spray throu h the first of saidvents encountered by tie moving column of brick to moisten theundersurface thereof, a scraping blade carried by said support andadapted to contact the upper face of said brick whereby to remove excesssand therefrom, a blower, means for delivering sand from said scrapingblade to said blower, and means for projecting said sand from saidblower through the other of said vents to the underface of said brick.

RUFUS ISENHOUR.

